제출 #311470

#제출 시각아이디문제언어결과실행 시간메모리
311470tevdoreK개의 묶음 (IZhO14_blocks)C++14
0 / 100
1 ms384 KiB
#include<bits/stdc++.h>
using namespace std;
const int N = 2e6 + 10;
int n, k, ans;
int a[N];
int main() {
    cin >> n >> k;
    for(int i = 1; i <= n; i++) cin >> a[i];
    for(int i = 1; i < k; i++) ans += a[i];
    ans += a[n];
    cout << ans << "\n";
}
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